12122551131 has 16 divisors (see below), whose sum is σ = 17177361408. Its totient is φ = 7578230400.

The previous prime is 12122551127. The next prime is 12122551151. The reversal of 12122551131 is 13115522121.

It is not a de Polignac number, because 12122551131 - 2² = 12122551127 is a prime.

It is a super-2 number, since 2×12122551131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12122551121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424735 + ... + 452376.

It is an arithmetic number, because the mean of its divisors is an integer number (1073585088).

Almost surely, 2^12122551131 is an apocalyptic number.

12122551131 is a deficient number, since it is larger than the sum of its proper divisors (5054810277).

12122551131 is a wasteful number, since it uses less digits than its factorization.

12122551131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877402.

The product of its digits is 600, while the sum is 24.

The spelling of 12122551131 in words is "twelve billion, one hundred twenty-two million, five hundred fifty-one thousand, one hundred thirty-one".